2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (c) 2008-2009 VMware, Inc.
6 * Copyright (c) 2012 Intel Corporation
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #include "glformats.h"
32 * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
35 _mesa_type_is_packed(GLenum type)
38 case GL_UNSIGNED_BYTE_3_3_2:
39 case GL_UNSIGNED_BYTE_2_3_3_REV:
40 case MESA_UNSIGNED_BYTE_4_4:
41 case GL_UNSIGNED_SHORT_5_6_5:
42 case GL_UNSIGNED_SHORT_5_6_5_REV:
43 case GL_UNSIGNED_SHORT_4_4_4_4:
44 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
45 case GL_UNSIGNED_SHORT_5_5_5_1:
46 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
47 case GL_UNSIGNED_INT_8_8_8_8:
48 case GL_UNSIGNED_INT_8_8_8_8_REV:
49 case GL_UNSIGNED_INT_10_10_10_2:
50 case GL_UNSIGNED_INT_2_10_10_10_REV:
51 case GL_UNSIGNED_SHORT_8_8_MESA:
52 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
53 case GL_UNSIGNED_INT_24_8_EXT:
54 case GL_UNSIGNED_INT_5_9_9_9_REV:
55 case GL_UNSIGNED_INT_10F_11F_11F_REV:
56 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
65 * Get the size of a GL data type.
67 * \param type GL data type.
69 * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
70 * if an invalid type enum.
73 _mesa_sizeof_type(GLenum type)
78 case GL_UNSIGNED_BYTE:
79 return sizeof(GLubyte);
81 return sizeof(GLbyte);
82 case GL_UNSIGNED_SHORT:
83 return sizeof(GLushort);
85 return sizeof(GLshort);
87 return sizeof(GLuint);
91 return sizeof(GLfloat);
93 return sizeof(GLdouble);
94 case GL_HALF_FLOAT_ARB:
95 return sizeof(GLhalfARB);
97 return sizeof(GLfixed);
105 * Same as _mesa_sizeof_type() but also accepting the packed pixel
109 _mesa_sizeof_packed_type(GLenum type)
114 case GL_UNSIGNED_BYTE:
115 return sizeof(GLubyte);
117 return sizeof(GLbyte);
118 case GL_UNSIGNED_SHORT:
119 return sizeof(GLushort);
121 return sizeof(GLshort);
122 case GL_UNSIGNED_INT:
123 return sizeof(GLuint);
125 return sizeof(GLint);
126 case GL_HALF_FLOAT_ARB:
127 return sizeof(GLhalfARB);
129 return sizeof(GLfloat);
130 case GL_UNSIGNED_BYTE_3_3_2:
131 case GL_UNSIGNED_BYTE_2_3_3_REV:
132 case MESA_UNSIGNED_BYTE_4_4:
133 return sizeof(GLubyte);
134 case GL_UNSIGNED_SHORT_5_6_5:
135 case GL_UNSIGNED_SHORT_5_6_5_REV:
136 case GL_UNSIGNED_SHORT_4_4_4_4:
137 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
138 case GL_UNSIGNED_SHORT_5_5_5_1:
139 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
140 case GL_UNSIGNED_SHORT_8_8_MESA:
141 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
142 return sizeof(GLushort);
143 case GL_UNSIGNED_INT_8_8_8_8:
144 case GL_UNSIGNED_INT_8_8_8_8_REV:
145 case GL_UNSIGNED_INT_10_10_10_2:
146 case GL_UNSIGNED_INT_2_10_10_10_REV:
147 case GL_UNSIGNED_INT_24_8_EXT:
148 case GL_UNSIGNED_INT_5_9_9_9_REV:
149 case GL_UNSIGNED_INT_10F_11F_11F_REV:
150 return sizeof(GLuint);
151 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
160 * Get the number of components in a pixel format.
162 * \param format pixel format.
164 * \return the number of components in the given format, or -1 if a bad format.
167 _mesa_components_in_format(GLenum format)
171 case GL_STENCIL_INDEX:
172 case GL_DEPTH_COMPONENT:
174 case GL_RED_INTEGER_EXT:
176 case GL_GREEN_INTEGER_EXT:
178 case GL_BLUE_INTEGER_EXT:
180 case GL_ALPHA_INTEGER_EXT:
182 case GL_LUMINANCE_INTEGER_EXT:
186 case GL_LUMINANCE_ALPHA:
187 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
190 case GL_DEPTH_STENCIL_EXT:
198 case GL_RGB_INTEGER_EXT:
199 case GL_BGR_INTEGER_EXT:
205 case GL_RGBA_INTEGER_EXT:
206 case GL_BGRA_INTEGER_EXT:
216 * Get the bytes per pixel of pixel format type pair.
218 * \param format pixel format.
219 * \param type pixel type.
221 * \return bytes per pixel, or -1 if a bad format or type was given.
224 _mesa_bytes_per_pixel(GLenum format, GLenum type)
226 GLint comps = _mesa_components_in_format(format);
232 return 0; /* special case */
234 case GL_UNSIGNED_BYTE:
235 return comps * sizeof(GLubyte);
237 case GL_UNSIGNED_SHORT:
238 return comps * sizeof(GLshort);
240 case GL_UNSIGNED_INT:
241 return comps * sizeof(GLint);
243 return comps * sizeof(GLfloat);
244 case GL_HALF_FLOAT_ARB:
245 return comps * sizeof(GLhalfARB);
246 case GL_UNSIGNED_BYTE_3_3_2:
247 case GL_UNSIGNED_BYTE_2_3_3_REV:
248 if (format == GL_RGB || format == GL_BGR ||
249 format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
250 return sizeof(GLubyte);
252 return -1; /* error */
253 case GL_UNSIGNED_SHORT_5_6_5:
254 case GL_UNSIGNED_SHORT_5_6_5_REV:
255 if (format == GL_RGB || format == GL_BGR ||
256 format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
257 return sizeof(GLushort);
259 return -1; /* error */
260 case GL_UNSIGNED_SHORT_4_4_4_4:
261 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
262 case GL_UNSIGNED_SHORT_5_5_5_1:
263 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
264 if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
265 format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
266 return sizeof(GLushort);
269 case GL_UNSIGNED_INT_8_8_8_8:
270 case GL_UNSIGNED_INT_8_8_8_8_REV:
271 case GL_UNSIGNED_INT_10_10_10_2:
272 case GL_UNSIGNED_INT_2_10_10_10_REV:
273 if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
274 format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT ||
276 return sizeof(GLuint);
279 case GL_UNSIGNED_SHORT_8_8_MESA:
280 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
281 if (format == GL_YCBCR_MESA)
282 return sizeof(GLushort);
285 case GL_UNSIGNED_INT_24_8_EXT:
286 if (format == GL_DEPTH_STENCIL_EXT)
287 return sizeof(GLuint);
290 case GL_UNSIGNED_INT_5_9_9_9_REV:
291 if (format == GL_RGB)
292 return sizeof(GLuint);
295 case GL_UNSIGNED_INT_10F_11F_11F_REV:
296 if (format == GL_RGB)
297 return sizeof(GLuint);
300 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
301 if (format == GL_DEPTH_STENCIL)
312 * Get the number of bytes for a vertex attrib with the given number of
313 * components and type.
315 * \param comps number of components.
316 * \param type data type.
318 * \return bytes per attribute, or -1 if a bad comps/type combination was given.
321 _mesa_bytes_per_vertex_attrib(GLint comps, GLenum type)
325 case GL_UNSIGNED_BYTE:
326 return comps * sizeof(GLubyte);
328 case GL_UNSIGNED_SHORT:
329 return comps * sizeof(GLshort);
331 case GL_UNSIGNED_INT:
332 return comps * sizeof(GLint);
334 return comps * sizeof(GLfloat);
335 case GL_HALF_FLOAT_ARB:
336 return comps * sizeof(GLhalfARB);
338 return comps * sizeof(GLdouble);
340 return comps * sizeof(GLfixed);
341 case GL_INT_2_10_10_10_REV:
342 case GL_UNSIGNED_INT_2_10_10_10_REV:
344 return sizeof(GLuint);
354 * Test if the given format is an integer (non-normalized) format.
357 _mesa_is_enum_format_unsigned_int(GLenum format)
360 /* specific integer formats */
361 case GL_RGBA32UI_EXT:
365 case GL_ALPHA32UI_EXT:
366 case GL_INTENSITY32UI_EXT:
367 case GL_LUMINANCE32UI_EXT:
368 case GL_LUMINANCE_ALPHA32UI_EXT:
369 case GL_RGBA16UI_EXT:
373 case GL_ALPHA16UI_EXT:
374 case GL_INTENSITY16UI_EXT:
375 case GL_LUMINANCE16UI_EXT:
376 case GL_LUMINANCE_ALPHA16UI_EXT:
381 case GL_ALPHA8UI_EXT:
382 case GL_INTENSITY8UI_EXT:
383 case GL_LUMINANCE8UI_EXT:
384 case GL_LUMINANCE_ALPHA8UI_EXT:
394 * Test if the given format is an integer (non-normalized) format.
397 _mesa_is_enum_format_signed_int(GLenum format)
400 /* generic integer formats */
401 case GL_RED_INTEGER_EXT:
402 case GL_GREEN_INTEGER_EXT:
403 case GL_BLUE_INTEGER_EXT:
404 case GL_ALPHA_INTEGER_EXT:
405 case GL_RGB_INTEGER_EXT:
406 case GL_RGBA_INTEGER_EXT:
407 case GL_BGR_INTEGER_EXT:
408 case GL_BGRA_INTEGER_EXT:
409 case GL_LUMINANCE_INTEGER_EXT:
410 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
412 /* specific integer formats */
417 case GL_ALPHA32I_EXT:
418 case GL_INTENSITY32I_EXT:
419 case GL_LUMINANCE32I_EXT:
420 case GL_LUMINANCE_ALPHA32I_EXT:
425 case GL_ALPHA16I_EXT:
426 case GL_INTENSITY16I_EXT:
427 case GL_LUMINANCE16I_EXT:
428 case GL_LUMINANCE_ALPHA16I_EXT:
434 case GL_INTENSITY8I_EXT:
435 case GL_LUMINANCE8I_EXT:
436 case GL_LUMINANCE_ALPHA8I_EXT:
445 * Test if the given format is an integer (non-normalized) format.
448 _mesa_is_enum_format_integer(GLenum format)
450 return _mesa_is_enum_format_unsigned_int(format) ||
451 _mesa_is_enum_format_signed_int(format);
456 * Test if the given type is an integer (non-normalized) format.
459 _mesa_is_type_integer(GLenum type)
463 case GL_UNSIGNED_INT:
465 case GL_UNSIGNED_SHORT:
467 case GL_UNSIGNED_BYTE:
476 * Test if the given format or type is an integer (non-normalized) format.
479 _mesa_is_enum_format_or_type_integer(GLenum format, GLenum type)
481 return _mesa_is_enum_format_integer(format) || _mesa_is_type_integer(type);
486 _mesa_is_type_unsigned(GLenum type)
489 case GL_UNSIGNED_INT:
490 case GL_UNSIGNED_INT_8_8_8_8:
491 case GL_UNSIGNED_INT_8_8_8_8_REV:
492 case GL_UNSIGNED_INT_10_10_10_2:
493 case GL_UNSIGNED_INT_2_10_10_10_REV:
495 case GL_UNSIGNED_SHORT:
496 case GL_UNSIGNED_SHORT_4_4_4_4:
497 case GL_UNSIGNED_SHORT_5_5_5_1:
498 case GL_UNSIGNED_SHORT_5_6_5:
499 case GL_UNSIGNED_SHORT_5_6_5_REV:
500 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
501 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
502 case GL_UNSIGNED_SHORT_8_8_MESA:
503 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
505 case GL_UNSIGNED_BYTE:
506 case GL_UNSIGNED_BYTE_3_3_2:
507 case GL_UNSIGNED_BYTE_2_3_3_REV:
517 * Test if the given image format is a color/RGBA format (i.e., not color
518 * index, depth, stencil, etc).
519 * \param format the image format value (may by an internal texture format)
520 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
523 _mesa_is_color_format(GLenum format)
541 case GL_LUMINANCE_ALPHA:
542 case GL_LUMINANCE4_ALPHA4:
543 case GL_LUMINANCE6_ALPHA2:
544 case GL_LUMINANCE8_ALPHA8:
545 case GL_LUMINANCE12_ALPHA4:
546 case GL_LUMINANCE12_ALPHA12:
547 case GL_LUMINANCE16_ALPHA16:
580 /* float texture formats */
581 case GL_ALPHA16F_ARB:
582 case GL_ALPHA32F_ARB:
583 case GL_LUMINANCE16F_ARB:
584 case GL_LUMINANCE32F_ARB:
585 case GL_LUMINANCE_ALPHA16F_ARB:
586 case GL_LUMINANCE_ALPHA32F_ARB:
587 case GL_INTENSITY16F_ARB:
588 case GL_INTENSITY32F_ARB:
597 /* compressed formats */
598 case GL_COMPRESSED_ALPHA:
599 case GL_COMPRESSED_LUMINANCE:
600 case GL_COMPRESSED_LUMINANCE_ALPHA:
601 case GL_COMPRESSED_INTENSITY:
602 case GL_COMPRESSED_RED:
603 case GL_COMPRESSED_RG:
604 case GL_COMPRESSED_RGB:
605 case GL_COMPRESSED_RGBA:
610 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
611 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
612 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
613 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
614 case GL_COMPRESSED_RGB_FXT1_3DFX:
615 case GL_COMPRESSED_RGBA_FXT1_3DFX:
618 case GL_SRGB_ALPHA_EXT:
619 case GL_SRGB8_ALPHA8_EXT:
620 case GL_SLUMINANCE_ALPHA_EXT:
621 case GL_SLUMINANCE8_ALPHA8_EXT:
622 case GL_SLUMINANCE_EXT:
623 case GL_SLUMINANCE8_EXT:
624 case GL_COMPRESSED_SRGB_EXT:
625 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
626 case GL_COMPRESSED_SRGB_ALPHA_EXT:
627 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
628 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
629 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
630 case GL_COMPRESSED_SLUMINANCE_EXT:
631 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
632 case GL_COMPRESSED_RED_RGTC1:
633 case GL_COMPRESSED_SIGNED_RED_RGTC1:
634 case GL_COMPRESSED_RG_RGTC2:
635 case GL_COMPRESSED_SIGNED_RG_RGTC2:
636 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
637 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
638 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
639 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
640 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
641 case GL_ETC1_RGB8_OES:
642 case GL_COMPRESSED_RGB8_ETC2:
643 case GL_COMPRESSED_SRGB8_ETC2:
644 case GL_COMPRESSED_RGBA8_ETC2_EAC:
645 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
646 case GL_COMPRESSED_R11_EAC:
647 case GL_COMPRESSED_RG11_EAC:
648 case GL_COMPRESSED_SIGNED_R11_EAC:
649 case GL_COMPRESSED_SIGNED_RG11_EAC:
650 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
651 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
652 /* generic integer formats */
653 case GL_RED_INTEGER_EXT:
654 case GL_GREEN_INTEGER_EXT:
655 case GL_BLUE_INTEGER_EXT:
656 case GL_ALPHA_INTEGER_EXT:
657 case GL_RGB_INTEGER_EXT:
658 case GL_RGBA_INTEGER_EXT:
659 case GL_BGR_INTEGER_EXT:
660 case GL_BGRA_INTEGER_EXT:
662 case GL_LUMINANCE_INTEGER_EXT:
663 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
664 /* sized integer formats */
665 case GL_RGBA32UI_EXT:
669 case GL_ALPHA32UI_EXT:
670 case GL_INTENSITY32UI_EXT:
671 case GL_LUMINANCE32UI_EXT:
672 case GL_LUMINANCE_ALPHA32UI_EXT:
673 case GL_RGBA16UI_EXT:
677 case GL_ALPHA16UI_EXT:
678 case GL_INTENSITY16UI_EXT:
679 case GL_LUMINANCE16UI_EXT:
680 case GL_LUMINANCE_ALPHA16UI_EXT:
685 case GL_ALPHA8UI_EXT:
686 case GL_INTENSITY8UI_EXT:
687 case GL_LUMINANCE8UI_EXT:
688 case GL_LUMINANCE_ALPHA8UI_EXT:
693 case GL_ALPHA32I_EXT:
694 case GL_INTENSITY32I_EXT:
695 case GL_LUMINANCE32I_EXT:
696 case GL_LUMINANCE_ALPHA32I_EXT:
701 case GL_ALPHA16I_EXT:
702 case GL_INTENSITY16I_EXT:
703 case GL_LUMINANCE16I_EXT:
704 case GL_LUMINANCE_ALPHA16I_EXT:
710 case GL_INTENSITY8I_EXT:
711 case GL_LUMINANCE8I_EXT:
712 case GL_LUMINANCE_ALPHA8I_EXT:
713 /* signed, normalized texture formats */
725 case GL_RGBA16_SNORM:
727 case GL_ALPHA8_SNORM:
728 case GL_ALPHA16_SNORM:
729 case GL_LUMINANCE_SNORM:
730 case GL_LUMINANCE8_SNORM:
731 case GL_LUMINANCE16_SNORM:
732 case GL_LUMINANCE_ALPHA_SNORM:
733 case GL_LUMINANCE8_ALPHA8_SNORM:
734 case GL_LUMINANCE16_ALPHA16_SNORM:
735 case GL_INTENSITY_SNORM:
736 case GL_INTENSITY8_SNORM:
737 case GL_INTENSITY16_SNORM:
739 case GL_R11F_G11F_B10F:
742 case GL_YCBCR_MESA: /* not considered to be RGB */
751 * Test if the given image format is a depth component format.
754 _mesa_is_depth_format(GLenum format)
757 case GL_DEPTH_COMPONENT:
758 case GL_DEPTH_COMPONENT16:
759 case GL_DEPTH_COMPONENT24:
760 case GL_DEPTH_COMPONENT32:
761 case GL_DEPTH_COMPONENT32F:
770 * Test if the given image format is a stencil format.
773 _mesa_is_stencil_format(GLenum format)
776 case GL_STENCIL_INDEX:
785 * Test if the given image format is a YCbCr format.
788 _mesa_is_ycbcr_format(GLenum format)
800 * Test if the given image format is a depth+stencil format.
803 _mesa_is_depthstencil_format(GLenum format)
806 case GL_DEPTH24_STENCIL8_EXT:
807 case GL_DEPTH_STENCIL_EXT:
808 case GL_DEPTH32F_STENCIL8:
817 * Test if the given image format is a depth or stencil format.
820 _mesa_is_depth_or_stencil_format(GLenum format)
823 case GL_DEPTH_COMPONENT:
824 case GL_DEPTH_COMPONENT16:
825 case GL_DEPTH_COMPONENT24:
826 case GL_DEPTH_COMPONENT32:
827 case GL_STENCIL_INDEX:
828 case GL_STENCIL_INDEX1_EXT:
829 case GL_STENCIL_INDEX4_EXT:
830 case GL_STENCIL_INDEX8_EXT:
831 case GL_STENCIL_INDEX16_EXT:
832 case GL_DEPTH_STENCIL_EXT:
833 case GL_DEPTH24_STENCIL8_EXT:
834 case GL_DEPTH_COMPONENT32F:
835 case GL_DEPTH32F_STENCIL8:
844 * Test if the given image format is a dudv format.
847 _mesa_is_dudv_format(GLenum format)
860 * Test if an image format is a supported compressed format.
861 * \param format the internal format token provided by the user.
862 * \return GL_TRUE if compressed, GL_FALSE if uncompressed
865 _mesa_is_compressed_format(struct gl_context *ctx, GLenum format)
868 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
869 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
870 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
871 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
872 /* Assume that the ANGLE flag will always be set if the EXT flag is set.
874 return ctx->Extensions.ANGLE_texture_compression_dxt;
879 return _mesa_is_desktop_gl(ctx) &&
880 ctx->Extensions.ANGLE_texture_compression_dxt;
881 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
882 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
883 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
884 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
885 return _mesa_is_desktop_gl(ctx)
886 && ctx->Extensions.EXT_texture_sRGB
887 && ctx->Extensions.EXT_texture_compression_s3tc;
888 case GL_COMPRESSED_RGB_FXT1_3DFX:
889 case GL_COMPRESSED_RGBA_FXT1_3DFX:
890 return _mesa_is_desktop_gl(ctx)
891 && ctx->Extensions.TDFX_texture_compression_FXT1;
892 case GL_COMPRESSED_RED_RGTC1:
893 case GL_COMPRESSED_SIGNED_RED_RGTC1:
894 case GL_COMPRESSED_RG_RGTC2:
895 case GL_COMPRESSED_SIGNED_RG_RGTC2:
896 return _mesa_is_desktop_gl(ctx)
897 && ctx->Extensions.ARB_texture_compression_rgtc;
898 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
899 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
900 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
901 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
902 return ctx->API == API_OPENGL_COMPAT
903 && ctx->Extensions.EXT_texture_compression_latc;
904 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
905 return ctx->API == API_OPENGL_COMPAT
906 && ctx->Extensions.ATI_texture_compression_3dc;
907 case GL_ETC1_RGB8_OES:
908 return _mesa_is_gles(ctx)
909 && ctx->Extensions.OES_compressed_ETC1_RGB8_texture;
910 case GL_COMPRESSED_RGB8_ETC2:
911 case GL_COMPRESSED_SRGB8_ETC2:
912 case GL_COMPRESSED_RGBA8_ETC2_EAC:
913 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
914 case GL_COMPRESSED_R11_EAC:
915 case GL_COMPRESSED_RG11_EAC:
916 case GL_COMPRESSED_SIGNED_R11_EAC:
917 case GL_COMPRESSED_SIGNED_RG11_EAC:
918 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
919 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
920 return _mesa_is_gles3(ctx);
921 case GL_PALETTE4_RGB8_OES:
922 case GL_PALETTE4_RGBA8_OES:
923 case GL_PALETTE4_R5_G6_B5_OES:
924 case GL_PALETTE4_RGBA4_OES:
925 case GL_PALETTE4_RGB5_A1_OES:
926 case GL_PALETTE8_RGB8_OES:
927 case GL_PALETTE8_RGBA8_OES:
928 case GL_PALETTE8_R5_G6_B5_OES:
929 case GL_PALETTE8_RGBA4_OES:
930 case GL_PALETTE8_RGB5_A1_OES:
931 return ctx->API == API_OPENGLES;
939 * Convert various base formats to the cooresponding integer format.
942 _mesa_base_format_to_integer_format(GLenum format)
946 return GL_RED_INTEGER;
948 return GL_GREEN_INTEGER;
950 return GL_BLUE_INTEGER;
952 return GL_RG_INTEGER;
954 return GL_RGB_INTEGER;
956 return GL_RGBA_INTEGER;
958 return GL_BGR_INTEGER;
960 return GL_BGRA_INTEGER;
962 return GL_ALPHA_INTEGER;
964 return GL_LUMINANCE_INTEGER_EXT;
965 case GL_LUMINANCE_ALPHA:
966 return GL_LUMINANCE_ALPHA_INTEGER_EXT;
974 * Does the given base texture/renderbuffer format have the channel
978 _mesa_base_format_has_channel(GLenum base_format, GLenum pname)
981 case GL_TEXTURE_RED_SIZE:
982 case GL_TEXTURE_RED_TYPE:
983 case GL_RENDERBUFFER_RED_SIZE_EXT:
984 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
985 if (base_format == GL_RED ||
986 base_format == GL_RG ||
987 base_format == GL_RGB ||
988 base_format == GL_RGBA) {
992 case GL_TEXTURE_GREEN_SIZE:
993 case GL_TEXTURE_GREEN_TYPE:
994 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
995 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
996 if (base_format == GL_RG ||
997 base_format == GL_RGB ||
998 base_format == GL_RGBA) {
1002 case GL_TEXTURE_BLUE_SIZE:
1003 case GL_TEXTURE_BLUE_TYPE:
1004 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1005 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
1006 if (base_format == GL_RGB ||
1007 base_format == GL_RGBA) {
1011 case GL_TEXTURE_ALPHA_SIZE:
1012 case GL_TEXTURE_ALPHA_TYPE:
1013 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1014 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
1015 if (base_format == GL_RGBA ||
1016 base_format == GL_ALPHA ||
1017 base_format == GL_LUMINANCE_ALPHA) {
1021 case GL_TEXTURE_LUMINANCE_SIZE:
1022 case GL_TEXTURE_LUMINANCE_TYPE:
1023 if (base_format == GL_LUMINANCE ||
1024 base_format == GL_LUMINANCE_ALPHA) {
1028 case GL_TEXTURE_INTENSITY_SIZE:
1029 case GL_TEXTURE_INTENSITY_TYPE:
1030 if (base_format == GL_INTENSITY) {
1034 case GL_TEXTURE_DEPTH_SIZE:
1035 case GL_TEXTURE_DEPTH_TYPE:
1036 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1037 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
1038 if (base_format == GL_DEPTH_STENCIL ||
1039 base_format == GL_DEPTH_COMPONENT) {
1043 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1044 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
1045 if (base_format == GL_DEPTH_STENCIL ||
1046 base_format == GL_STENCIL_INDEX) {
1051 _mesa_warning(NULL, "%s: Unexpected channel token 0x%x\n",
1052 __FUNCTION__, pname);
1061 * Returns the number of channels/components for a base format.
1064 _mesa_base_format_component_count(GLenum base_format)
1066 switch (base_format) {
1070 case GL_DEPTH_COMPONENT:
1073 case GL_LUMINANCE_ALPHA:
1074 case GL_DEPTH_STENCIL:
1087 * If format is a generic compressed format, return the corresponding
1088 * non-compressed format. For other formats, return the format as-is.
1091 _mesa_generic_compressed_format_to_uncompressed_format(GLenum format)
1094 case GL_COMPRESSED_RED:
1096 case GL_COMPRESSED_RG:
1098 case GL_COMPRESSED_RGB:
1100 case GL_COMPRESSED_RGBA:
1102 case GL_COMPRESSED_ALPHA:
1104 case GL_COMPRESSED_LUMINANCE:
1105 return GL_LUMINANCE;
1106 case GL_COMPRESSED_LUMINANCE_ALPHA:
1107 return GL_LUMINANCE_ALPHA;
1108 case GL_COMPRESSED_INTENSITY:
1109 return GL_INTENSITY;
1111 case GL_COMPRESSED_SRGB:
1113 case GL_COMPRESSED_SRGB_ALPHA:
1114 return GL_SRGB_ALPHA;
1115 case GL_COMPRESSED_SLUMINANCE:
1116 return GL_SLUMINANCE;
1117 case GL_COMPRESSED_SLUMINANCE_ALPHA:
1118 return GL_SLUMINANCE_ALPHA;
1126 * Return the equivalent non-generic internal format.
1127 * This is useful for comparing whether two internal formats are equivalent.
1130 _mesa_get_nongeneric_internalformat(GLenum format)
1133 /* GL 1.1 formats. */
1143 case GL_LUMINANCE_ALPHA:
1144 return GL_LUMINANCE8_ALPHA8;
1148 return GL_LUMINANCE8;
1154 return GL_INTENSITY8;
1156 /* GL_ARB_texture_rg */
1163 /* GL_EXT_texture_sRGB */
1168 return GL_SRGB8_ALPHA8;
1171 return GL_SLUMINANCE8;
1173 case GL_SLUMINANCE_ALPHA:
1174 return GL_SLUMINANCE8_ALPHA8;
1176 /* GL_EXT_texture_snorm */
1178 return GL_RGBA8_SNORM;
1181 return GL_RGB8_SNORM;
1184 return GL_RG8_SNORM;
1189 case GL_LUMINANCE_ALPHA_SNORM:
1190 return GL_LUMINANCE8_ALPHA8_SNORM;
1192 case GL_LUMINANCE_SNORM:
1193 return GL_LUMINANCE8_SNORM;
1195 case GL_ALPHA_SNORM:
1196 return GL_ALPHA8_SNORM;
1198 case GL_INTENSITY_SNORM:
1199 return GL_INTENSITY8_SNORM;
1208 * Convert an sRGB internal format to linear.
1211 _mesa_get_linear_internalformat(GLenum format)
1223 case GL_SRGB8_ALPHA8:
1227 return GL_LUMINANCE8;
1229 case GL_SLUMINANCE_ALPHA:
1230 return GL_LUMINANCE8_ALPHA8;
1239 * Do error checking of format/type combinations for glReadPixels,
1240 * glDrawPixels and glTex[Sub]Image. Note that depending on the format
1241 * and type values, we may either generate GL_INVALID_OPERATION or
1244 * \param format pixel format.
1245 * \param type pixel type.
1247 * \return GL_INVALID_ENUM, GL_INVALID_OPERATION or GL_NO_ERROR
1250 _mesa_error_check_format_and_type(const struct gl_context *ctx,
1251 GLenum format, GLenum type)
1253 /* special type-based checks (see glReadPixels, glDrawPixels error lists) */
1256 if (format != GL_COLOR_INDEX && format != GL_STENCIL_INDEX) {
1257 return GL_INVALID_ENUM;
1261 case GL_UNSIGNED_BYTE_3_3_2:
1262 case GL_UNSIGNED_BYTE_2_3_3_REV:
1263 case GL_UNSIGNED_SHORT_5_6_5:
1264 case GL_UNSIGNED_SHORT_5_6_5_REV:
1265 if (format == GL_RGB) {
1268 if (format == GL_RGB_INTEGER_EXT &&
1269 ctx->Extensions.ARB_texture_rgb10_a2ui) {
1272 return GL_INVALID_OPERATION;
1274 case GL_UNSIGNED_SHORT_4_4_4_4:
1275 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
1276 case GL_UNSIGNED_SHORT_5_5_5_1:
1277 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
1278 case GL_UNSIGNED_INT_8_8_8_8:
1279 case GL_UNSIGNED_INT_8_8_8_8_REV:
1280 case GL_UNSIGNED_INT_10_10_10_2:
1281 case GL_UNSIGNED_INT_2_10_10_10_REV:
1282 if (format == GL_RGBA ||
1283 format == GL_BGRA ||
1284 format == GL_ABGR_EXT) {
1287 if ((format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) &&
1288 ctx->Extensions.ARB_texture_rgb10_a2ui) {
1291 if (type == GL_UNSIGNED_INT_2_10_10_10_REV && format == GL_RGB &&
1292 ctx->API == API_OPENGLES2) {
1293 break; /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1295 return GL_INVALID_OPERATION;
1297 case GL_UNSIGNED_INT_24_8:
1298 if (!ctx->Extensions.EXT_packed_depth_stencil) {
1299 return GL_INVALID_ENUM;
1301 if (format != GL_DEPTH_STENCIL) {
1302 return GL_INVALID_OPERATION;
1306 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
1307 if (!ctx->Extensions.ARB_depth_buffer_float) {
1308 return GL_INVALID_ENUM;
1310 if (format != GL_DEPTH_STENCIL) {
1311 return GL_INVALID_OPERATION;
1315 case GL_UNSIGNED_INT_10F_11F_11F_REV:
1316 if (!ctx->Extensions.EXT_packed_float) {
1317 return GL_INVALID_ENUM;
1319 if (format != GL_RGB) {
1320 return GL_INVALID_OPERATION;
1325 ; /* fall-through */
1328 /* now, for each format, check the type for compatibility */
1330 case GL_COLOR_INDEX:
1331 case GL_STENCIL_INDEX:
1335 case GL_UNSIGNED_BYTE:
1337 case GL_UNSIGNED_SHORT:
1339 case GL_UNSIGNED_INT:
1343 return ctx->Extensions.ARB_half_float_pixel
1344 ? GL_NO_ERROR : GL_INVALID_ENUM;
1346 return GL_INVALID_ENUM;
1353 #if 0 /* not legal! see table 3.6 of the 1.5 spec */
1357 case GL_LUMINANCE_ALPHA:
1358 case GL_DEPTH_COMPONENT:
1361 case GL_UNSIGNED_BYTE:
1363 case GL_UNSIGNED_SHORT:
1365 case GL_UNSIGNED_INT:
1369 return ctx->Extensions.ARB_half_float_pixel
1370 ? GL_NO_ERROR : GL_INVALID_ENUM;
1372 return GL_INVALID_ENUM;
1376 if (!ctx->Extensions.ARB_texture_rg)
1377 return GL_INVALID_ENUM;
1380 case GL_UNSIGNED_BYTE:
1382 case GL_UNSIGNED_SHORT:
1384 case GL_UNSIGNED_INT:
1388 return ctx->Extensions.ARB_half_float_pixel
1389 ? GL_NO_ERROR : GL_INVALID_ENUM;
1391 return GL_INVALID_ENUM;
1397 case GL_UNSIGNED_BYTE:
1399 case GL_UNSIGNED_SHORT:
1401 case GL_UNSIGNED_INT:
1403 case GL_UNSIGNED_BYTE_3_3_2:
1404 case GL_UNSIGNED_BYTE_2_3_3_REV:
1405 case GL_UNSIGNED_SHORT_5_6_5:
1406 case GL_UNSIGNED_SHORT_5_6_5_REV:
1408 case GL_UNSIGNED_INT_2_10_10_10_REV:
1409 /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1410 return (ctx->API == API_OPENGLES2)
1411 ? GL_NO_ERROR : GL_INVALID_ENUM;
1413 return ctx->Extensions.ARB_half_float_pixel
1414 ? GL_NO_ERROR : GL_INVALID_ENUM;
1415 case GL_UNSIGNED_INT_5_9_9_9_REV:
1416 return ctx->Extensions.EXT_texture_shared_exponent
1417 ? GL_NO_ERROR : GL_INVALID_ENUM;
1418 case GL_UNSIGNED_INT_10F_11F_11F_REV:
1419 return ctx->Extensions.EXT_packed_float
1420 ? GL_NO_ERROR : GL_INVALID_ENUM;
1422 return GL_INVALID_ENUM;
1427 /* NOTE: no packed types are supported with BGR. That's
1428 * intentional, according to the GL spec.
1431 case GL_UNSIGNED_BYTE:
1433 case GL_UNSIGNED_SHORT:
1435 case GL_UNSIGNED_INT:
1439 return ctx->Extensions.ARB_half_float_pixel
1440 ? GL_NO_ERROR : GL_INVALID_ENUM;
1442 return GL_INVALID_ENUM;
1450 case GL_UNSIGNED_BYTE:
1452 case GL_UNSIGNED_SHORT:
1454 case GL_UNSIGNED_INT:
1456 case GL_UNSIGNED_SHORT_4_4_4_4:
1457 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
1458 case GL_UNSIGNED_SHORT_5_5_5_1:
1459 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
1460 case GL_UNSIGNED_INT_8_8_8_8:
1461 case GL_UNSIGNED_INT_8_8_8_8_REV:
1462 case GL_UNSIGNED_INT_10_10_10_2:
1463 case GL_UNSIGNED_INT_2_10_10_10_REV:
1466 return ctx->Extensions.ARB_half_float_pixel
1467 ? GL_NO_ERROR : GL_INVALID_ENUM;
1469 return GL_INVALID_ENUM;
1473 if (!ctx->Extensions.MESA_ycbcr_texture)
1474 return GL_INVALID_ENUM;
1475 if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
1476 type == GL_UNSIGNED_SHORT_8_8_REV_MESA)
1479 return GL_INVALID_OPERATION;
1481 case GL_DEPTH_STENCIL_EXT:
1482 if (ctx->Extensions.EXT_packed_depth_stencil &&
1483 type == GL_UNSIGNED_INT_24_8)
1485 else if (ctx->Extensions.ARB_depth_buffer_float &&
1486 type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV)
1490 case GL_UNSIGNED_BYTE:
1492 case GL_UNSIGNED_SHORT:
1494 case GL_UNSIGNED_INT:
1496 return GL_INVALID_OPERATION;
1498 return GL_INVALID_ENUM;
1503 if (!ctx->Extensions.ATI_envmap_bumpmap)
1504 return GL_INVALID_ENUM;
1507 case GL_UNSIGNED_BYTE:
1509 case GL_UNSIGNED_SHORT:
1511 case GL_UNSIGNED_INT:
1515 return GL_INVALID_ENUM;
1518 /* integer-valued formats */
1519 case GL_RED_INTEGER_EXT:
1520 case GL_GREEN_INTEGER_EXT:
1521 case GL_BLUE_INTEGER_EXT:
1522 case GL_ALPHA_INTEGER_EXT:
1526 case GL_UNSIGNED_BYTE:
1528 case GL_UNSIGNED_SHORT:
1530 case GL_UNSIGNED_INT:
1531 return (ctx->Version >= 30 ||
1532 ctx->Extensions.EXT_texture_integer)
1533 ? GL_NO_ERROR : GL_INVALID_ENUM;
1535 return GL_INVALID_ENUM;
1538 case GL_RGB_INTEGER_EXT:
1541 case GL_UNSIGNED_BYTE:
1543 case GL_UNSIGNED_SHORT:
1545 case GL_UNSIGNED_INT:
1546 return (ctx->Version >= 30 ||
1547 ctx->Extensions.EXT_texture_integer)
1548 ? GL_NO_ERROR : GL_INVALID_ENUM;
1549 case GL_UNSIGNED_BYTE_3_3_2:
1550 case GL_UNSIGNED_BYTE_2_3_3_REV:
1551 case GL_UNSIGNED_SHORT_5_6_5:
1552 case GL_UNSIGNED_SHORT_5_6_5_REV:
1553 return ctx->Extensions.ARB_texture_rgb10_a2ui
1554 ? GL_NO_ERROR : GL_INVALID_ENUM;
1556 return GL_INVALID_ENUM;
1559 case GL_BGR_INTEGER_EXT:
1562 case GL_UNSIGNED_BYTE:
1564 case GL_UNSIGNED_SHORT:
1566 case GL_UNSIGNED_INT:
1567 /* NOTE: no packed formats w/ BGR format */
1568 return (ctx->Version >= 30 ||
1569 ctx->Extensions.EXT_texture_integer)
1570 ? GL_NO_ERROR : GL_INVALID_ENUM;
1572 return GL_INVALID_ENUM;
1575 case GL_RGBA_INTEGER_EXT:
1576 case GL_BGRA_INTEGER_EXT:
1579 case GL_UNSIGNED_BYTE:
1581 case GL_UNSIGNED_SHORT:
1583 case GL_UNSIGNED_INT:
1584 return (ctx->Version >= 30 ||
1585 ctx->Extensions.EXT_texture_integer)
1586 ? GL_NO_ERROR : GL_INVALID_ENUM;
1587 case GL_UNSIGNED_SHORT_4_4_4_4:
1588 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
1589 case GL_UNSIGNED_SHORT_5_5_5_1:
1590 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
1591 case GL_UNSIGNED_INT_8_8_8_8:
1592 case GL_UNSIGNED_INT_8_8_8_8_REV:
1593 case GL_UNSIGNED_INT_10_10_10_2:
1594 case GL_UNSIGNED_INT_2_10_10_10_REV:
1595 return ctx->Extensions.ARB_texture_rgb10_a2ui
1596 ? GL_NO_ERROR : GL_INVALID_ENUM;
1598 return GL_INVALID_ENUM;
1601 case GL_LUMINANCE_INTEGER_EXT:
1602 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
1605 case GL_UNSIGNED_BYTE:
1607 case GL_UNSIGNED_SHORT:
1609 case GL_UNSIGNED_INT:
1610 return ctx->Extensions.EXT_texture_integer
1611 ? GL_NO_ERROR : GL_INVALID_ENUM;
1613 return GL_INVALID_ENUM;
1617 return GL_INVALID_ENUM;
1624 * Do error checking of format/type combinations for OpenGL ES glReadPixels
1625 * and glTex[Sub]Image.
1626 * \return error code, or GL_NO_ERROR.
1629 _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
1630 unsigned dimensions)
1632 GLboolean type_valid = GL_TRUE;
1637 case GL_LUMINANCE_ALPHA:
1638 type_valid = (type == GL_UNSIGNED_BYTE
1640 || type == GL_HALF_FLOAT_OES);
1644 type_valid = (type == GL_UNSIGNED_BYTE
1645 || type == GL_UNSIGNED_SHORT_5_6_5
1647 || type == GL_HALF_FLOAT_OES);
1651 type_valid = (type == GL_UNSIGNED_BYTE
1652 || type == GL_UNSIGNED_SHORT_4_4_4_4
1653 || type == GL_UNSIGNED_SHORT_5_5_5_1
1655 || type == GL_HALF_FLOAT_OES
1656 || type == GL_UNSIGNED_INT_2_10_10_10_REV);
1659 case GL_DEPTH_COMPONENT:
1660 /* This format is filtered against invalid dimensionalities elsewhere.
1662 type_valid = (type == GL_UNSIGNED_SHORT
1663 || type == GL_UNSIGNED_INT);
1666 case GL_DEPTH_STENCIL:
1667 /* This format is filtered against invalid dimensionalities elsewhere.
1669 type_valid = (type == GL_UNSIGNED_INT_24_8);
1673 type_valid = (type == GL_UNSIGNED_BYTE);
1675 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1676 * the format does not appear to be allowed for 3D textures in OpenGL
1679 if (dimensions != 2)
1680 return GL_INVALID_VALUE;
1685 return GL_INVALID_VALUE;
1688 return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;
1693 * Do error checking of format/type combinations for OpenGL ES 3
1695 * \return error code, or GL_NO_ERROR.
1698 _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
1699 GLenum internalFormat)
1701 GLboolean type_valid = GL_TRUE;
1706 case GL_UNSIGNED_BYTE:
1707 switch (internalFormat) {
1712 case GL_SRGB8_ALPHA8_EXT:
1715 return GL_INVALID_OPERATION;
1720 if (internalFormat != GL_RGBA8_SNORM)
1721 return GL_INVALID_OPERATION;
1724 case GL_UNSIGNED_SHORT_4_4_4_4:
1725 switch (internalFormat) {
1730 return GL_INVALID_OPERATION;
1734 case GL_UNSIGNED_SHORT_5_5_5_1:
1735 switch (internalFormat) {
1740 return GL_INVALID_OPERATION;
1744 case GL_UNSIGNED_INT_2_10_10_10_REV:
1745 switch (internalFormat) {
1746 case GL_RGBA: /* GL_EXT_texture_type_2_10_10_10_REV */
1751 return GL_INVALID_OPERATION;
1756 if (internalFormat != GL_RGBA16F)
1757 return GL_INVALID_OPERATION;
1761 switch (internalFormat) {
1766 return GL_INVALID_OPERATION;
1771 return GL_INVALID_OPERATION;
1775 case GL_RGBA_INTEGER:
1777 case GL_UNSIGNED_BYTE:
1778 if (internalFormat != GL_RGBA8UI)
1779 return GL_INVALID_OPERATION;
1783 if (internalFormat != GL_RGBA8I)
1784 return GL_INVALID_OPERATION;
1787 case GL_UNSIGNED_SHORT:
1788 if (internalFormat != GL_RGBA16UI)
1789 return GL_INVALID_OPERATION;
1793 if (internalFormat != GL_RGBA16I)
1794 return GL_INVALID_OPERATION;
1797 case GL_UNSIGNED_INT:
1798 if (internalFormat != GL_RGBA32UI)
1799 return GL_INVALID_OPERATION;
1803 if (internalFormat != GL_RGBA32I)
1804 return GL_INVALID_OPERATION;
1807 case GL_UNSIGNED_INT_2_10_10_10_REV:
1808 if (internalFormat != GL_RGB10_A2UI)
1809 return GL_INVALID_OPERATION;
1813 return GL_INVALID_OPERATION;
1819 case GL_UNSIGNED_BYTE:
1820 switch (internalFormat) {
1827 return GL_INVALID_OPERATION;
1832 if (internalFormat != GL_RGB8_SNORM)
1833 return GL_INVALID_OPERATION;
1836 case GL_UNSIGNED_SHORT_5_6_5:
1837 switch (internalFormat) {
1842 return GL_INVALID_OPERATION;
1846 case GL_UNSIGNED_INT_10F_11F_11F_REV:
1847 if (internalFormat != GL_R11F_G11F_B10F)
1848 return GL_INVALID_OPERATION;
1851 case GL_UNSIGNED_INT_5_9_9_9_REV:
1852 if (internalFormat != GL_RGB9_E5)
1853 return GL_INVALID_OPERATION;
1857 switch (internalFormat) {
1859 case GL_R11F_G11F_B10F:
1863 return GL_INVALID_OPERATION;
1868 switch (internalFormat) {
1871 case GL_R11F_G11F_B10F:
1875 return GL_INVALID_OPERATION;
1879 case GL_UNSIGNED_INT_2_10_10_10_REV:
1880 switch (internalFormat) {
1881 case GL_RGB: /* GL_EXT_texture_type_2_10_10_10_REV */
1884 return GL_INVALID_OPERATION;
1889 return GL_INVALID_OPERATION;
1893 case GL_RGB_INTEGER:
1895 case GL_UNSIGNED_BYTE:
1896 if (internalFormat != GL_RGB8UI)
1897 return GL_INVALID_OPERATION;
1901 if (internalFormat != GL_RGB8I)
1902 return GL_INVALID_OPERATION;
1905 case GL_UNSIGNED_SHORT:
1906 if (internalFormat != GL_RGB16UI)
1907 return GL_INVALID_OPERATION;
1911 if (internalFormat != GL_RGB16I)
1912 return GL_INVALID_OPERATION;
1915 case GL_UNSIGNED_INT:
1916 if (internalFormat != GL_RGB32UI)
1917 return GL_INVALID_OPERATION;
1921 if (internalFormat != GL_RGB32I)
1922 return GL_INVALID_OPERATION;
1926 return GL_INVALID_OPERATION;
1932 case GL_UNSIGNED_BYTE:
1933 if (internalFormat != GL_RG8)
1934 return GL_INVALID_OPERATION;
1938 if (internalFormat != GL_RG8_SNORM)
1939 return GL_INVALID_OPERATION;
1943 if (internalFormat != GL_RG16F)
1944 return GL_INVALID_OPERATION;
1948 switch (internalFormat) {
1953 return GL_INVALID_OPERATION;
1958 return GL_INVALID_OPERATION;
1964 case GL_UNSIGNED_BYTE:
1965 if (internalFormat != GL_RG8UI)
1966 return GL_INVALID_OPERATION;
1970 if (internalFormat != GL_RG8I)
1971 return GL_INVALID_OPERATION;
1974 case GL_UNSIGNED_SHORT:
1975 if (internalFormat != GL_RG16UI)
1976 return GL_INVALID_OPERATION;
1980 if (internalFormat != GL_RG16I)
1981 return GL_INVALID_OPERATION;
1984 case GL_UNSIGNED_INT:
1985 if (internalFormat != GL_RG32UI)
1986 return GL_INVALID_OPERATION;
1990 if (internalFormat != GL_RG32I)
1991 return GL_INVALID_OPERATION;
1995 return GL_INVALID_OPERATION;
2001 case GL_UNSIGNED_BYTE:
2002 if (internalFormat != GL_R8)
2003 return GL_INVALID_OPERATION;
2007 if (internalFormat != GL_R8_SNORM)
2008 return GL_INVALID_OPERATION;
2012 if (internalFormat != GL_R16F)
2013 return GL_INVALID_OPERATION;
2017 switch (internalFormat) {
2022 return GL_INVALID_OPERATION;
2027 return GL_INVALID_OPERATION;
2031 case GL_RED_INTEGER:
2033 case GL_UNSIGNED_BYTE:
2034 if (internalFormat != GL_R8UI)
2035 return GL_INVALID_OPERATION;
2039 if (internalFormat != GL_R8I)
2040 return GL_INVALID_OPERATION;
2043 case GL_UNSIGNED_SHORT:
2044 if (internalFormat != GL_R16UI)
2045 return GL_INVALID_OPERATION;
2049 if (internalFormat != GL_R16I)
2050 return GL_INVALID_OPERATION;
2053 case GL_UNSIGNED_INT:
2054 if (internalFormat != GL_R32UI)
2055 return GL_INVALID_OPERATION;
2059 if (internalFormat != GL_R32I)
2060 return GL_INVALID_OPERATION;
2064 return GL_INVALID_OPERATION;
2068 case GL_DEPTH_COMPONENT:
2070 case GL_UNSIGNED_SHORT:
2071 if (internalFormat != GL_DEPTH_COMPONENT
2072 && internalFormat != GL_DEPTH_COMPONENT16)
2073 return GL_INVALID_OPERATION;
2076 case GL_UNSIGNED_INT:
2077 switch (internalFormat) {
2078 case GL_DEPTH_COMPONENT:
2079 case GL_DEPTH_COMPONENT16:
2080 case GL_DEPTH_COMPONENT24:
2083 return GL_INVALID_OPERATION;
2088 if (internalFormat != GL_DEPTH_COMPONENT32F)
2089 return GL_INVALID_OPERATION;
2093 return GL_INVALID_OPERATION;
2097 case GL_DEPTH_STENCIL:
2099 case GL_UNSIGNED_INT_24_8:
2100 if (internalFormat != GL_DEPTH_STENCIL
2101 && internalFormat != GL_DEPTH24_STENCIL8)
2102 return GL_INVALID_OPERATION;
2105 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
2106 if (internalFormat != GL_DEPTH32F_STENCIL8)
2107 return GL_INVALID_OPERATION;
2111 return GL_INVALID_OPERATION;
2117 case GL_LUMINANCE_ALPHA:
2118 if (type != GL_UNSIGNED_BYTE || format != internalFormat)
2119 return GL_INVALID_OPERATION;
2123 return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;